<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="hello6">
        {{ message }}
        <input v-model="message">
        <div v-bind="message"></div>
    </div>



    <script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
    <script>
        var vm = new Vue({
            el: "#hello6", //  要在引用vue是最上层
            data: {
                message: "hello world"
            }
        })
    </script>

</body>

</html>